Can i get the camera's image or vedio through the usb?

My client has bought two cameras and he want to use the camera through pc. Does the camera have the ROS package?Or can he get the image or veido through the usb ?He meant he did not need the algorithm and just need the image or vedio in real-time.So that he can do the algorithm by himself.Some clients of mine also asked me the same question.It's pity that when i told them can not they would like to choose other cameras like cognex。